Expansion joint structure and construction method for connecting cloud rail steel track beam and concrete track beam

Abstract

The present invention relates to an expansion joint structure and a construction method for connecting a cloud rail steel track beam and a concrete track beam. The structure includes an anti-overturning angle steel, a concrete upper flange joint plate, a lateral joint plate seat of the concrete track beam, a lateral joint plate seat of the steel track beam, and a web joint plate. The anti-overturning angle steel is integrally cast with the side surface of the concrete track beam, the concrete upper flange joint plate is integrally cast with the concrete track beam, and the lateral joint plate seat of the concrete track beam is embedded in the concrete track beam. With a special dedicated method, it can not only bear the longitudinal driving load but also bear the lateral anti-overturning load, making the driving transition relatively smooth, reducing bumps, and having better comfort. At the same time, the construction organization is clear, the assembly is convenient, and it is also convenient to disassemble, maintain, has a long service life, and is easy to repair.

Description

Technical Field

[0001] The present invention relates to the field of rail transit of rubber-tyred trams for light rail transit, and particularly to an expansion joint structure and a construction method for connecting a steel track beam and a concrete track beam of a cloud rail. Background Art

[0002] As a new type of light rail transit system, the rubber-tyred tram "cloud rail" plays an important role in the suburbs of big cities and areas with less passenger flow in small and medium-sized cities. It helps to relieve traffic congestion, improve urban travel efficiency, reduce urban construction costs and construction periods, and provides a fast, safe, convenient and comfortable travel mode. For the elevated cloud rail system, due to the small span of stations, concrete U-shaped track beams are often used, and steel track beams are mostly used for the sections according to the bridge span size. The rubber tyres of the cloud rail act on the top of the track beam, and steel plates are arranged on the side to prevent overturning. Since the steel track beam and the concrete track beam have different temperature deformations, expansion joints need to be set for connection. The structures on both sides of the traditional expansion joint are of the same type and are connected by flat joints. There is basically no moving load on the top, and the connection joint does not bear the repeated action of the load. The structural requirements for the expansion joint only meet the expansion deformation and waterproof functions. However, the designed service life of the cloud rail track beam is 100 years, and vehicles run on the top for a long time. In order to make the vehicle run smoothly, reduce bumps, and bear the top load and the side anti-overturning load at the same time, higher requirements are put forward for the smooth transition, durability and on-site construction convenience of the expansion joint at the connection part. Summary of the Invention

[0003] In view of the deficiencies of the prior art, the present invention provides an expansion joint structure for connecting a steel track beam and a concrete track beam of a cloud rail, including an anti-overturning angle steel, a concrete upper flange joint plate, a concrete track beam side joint plate seat, a steel track beam side joint plate seat, and a web joint plate. The anti-overturning angle steel is integrally formed by pouring with the side of the concrete track beam, the concrete upper flange joint plate is integrally formed by pouring with the concrete track beam, the concrete track beam side joint plate seat is embedded in the concrete track beam, the steel track beam side joint plate seat is connected to the web of the steel track beam, and the web joint plate is respectively assembled and connected to the concrete track beam side joint plate seat and the steel track beam side joint plate seat.

[0004] Preferably, the concrete upper flange joint plate includes a concrete upper flange joint steel plate and embedded anchor bars. The concrete upper flange joint steel plate is connected to the upper flange of the steel track beam through an inclined joint, and the concrete upper flange joint steel plate and the concrete track beam are integrally formed by pouring through the embedded anchor bars.

[0005] Preferably, the concrete track beam side joint plate seat includes a concrete track beam web connecting plate seat steel plate, stud bolts, and an outer connecting pipe. The concrete track beam web connecting plate seat steel plate is embedded in the web of the concrete track beam through the stud bolts and the outer connecting pipe.

[0006] Preferably, the web joint plate includes a web connection plate and a screw, and the web connection plate is assembled and connected to the side joint plate seat of the concrete track beam through the screw.

[0007] Preferably, after the side joint plate seat of the steel track beam is connected to the web of the steel track beam, it is welded into a whole with the edge sealing plate of the steel track beam web.

[0008] Preferably, the two web connection plates are connected and transitioned through an inclined joint, and the web butt joint plate is welded to the web of the steel track beam through fillet welds.

[0009] Based on the same inventive concept, the present invention also provides a construction method for the expansion joint structure of the connection between the cloud rail steel track beam and the concrete track beam, including the following steps:

[0010] The concrete upper flange joint plate is connected to the steel track beam by an inclined joint;

[0011] The anti-roll angle steel is integrally cast with the side of the concrete track beam;

[0012] The concrete upper flange joint steel plate is integrally cast with the concrete track beam through embedded anchor bars. The concrete upper flange joint plate is flush with the top of the concrete track beam, and the joint side between the concrete upper flange joint plate and the steel track beam adopts an inclined joint method;

[0013] The steel plate of the web connection plate seat of the concrete track beam is embedded into the web of the concrete track beam through stud bolts and external connecting pipes;

[0014] The side joint plate seat of the steel track beam is connected to the web of the steel track beam, and at the same time, the edge sealing plate of the steel track beam web is welded and assembled;

[0015] The web connection plates are respectively assembled to the corresponding side joint plate seats of the concrete track beam and the web joint plate seats of the steel track beam through screws;

[0016] After the web butt joint plate is assembled, it is butt-welded to the web of the steel track beam.

[0017] Compared with the closest prior art, the beneficial effects of the present invention are:

[0018] The expansion joint method for the connection between the cloud rail steel track beam and the concrete track beam is a special and dedicated method for the connection between the cloud rail steel track beam and the concrete track beam. It can not only bear the longitudinal driving load but also the lateral anti-overturning load. The horizontal joint and the web joint method both adopt the inclined joint method, and the driving transition is relatively smooth, reducing bumps and having better comfort. The web connection adopts screw connection, with clear construction organization, convenient assembly, and at the same time, it is convenient for disassembly, maintenance, has a long service life, and is easy to repair. Description of the Drawings

[0019] Figure 1 It is an overall plan view of the expansion joint for the connection between the cloud rail steel track beam and the concrete track beam provided by the present invention;

[0020] Figure 2 It is a longitudinal sectional view of the joint between the steel track beam and the concrete track beam of the expansion joint for the connection between the cloud rail steel track beam and the concrete track beam provided by the present invention;

[0021] Figure 3 It is a cross-sectional view of the joint of the steel track beam of the expansion joint for the connection between the cloud rail steel track beam and the concrete track beam provided by the present invention;

[0022] Figure 4 It is a cross-sectional view of the joint of the concrete track beam of the expansion joint for the connection between the cloud rail steel track beam and the concrete track beam provided by the present invention;

[0023] Figure 5 It is a schematic diagram of the joint plate of the concrete upper flange of the expansion joint for the connection between the cloud rail steel track beam and the concrete track beam provided by the present invention;

[0024] Figure 6 It is a schematic diagram of the joint plate seat of the web of the concrete track beam of the expansion joint for the connection between the cloud rail steel track beam and the concrete track beam provided by the present invention;

[0025] Figure 7 It is a schematic diagram of the web joint plate of the expansion joint for the connection between the cloud rail steel track beam and the concrete track beam provided by the present invention;

[0026] Description of reference numerals:

[0027] 1. Steel track beam; 2. Concrete track beam; 3. Anti-rollover angle steel; 4. Joint plate of concrete upper flange; 4-1 Joint steel plate of concrete upper flange; 4-2 Embedded anchor bar; 5. Side joint plate seat of concrete track beam; 5-1 Connecting plate seat steel plate of web of concrete track beam; 5-2 Stud; 5-3 Outer connecting pipe; 6. Side joint plate seat of steel track beam; 7. Web joint plate; 7-1 Web connecting plate; 7-2 Screw rod; 8. Web butt joint plate; 9. Edge sealing plate of web of steel track beam; 10. Boundary line of steel track beam; 11. Demarcation line of concrete track beam; 12. Center line of beam joint. Detailed implementation manners

[0028] The following further elaborates on the detailed implementation manners of the present invention in conjunction with the accompanying drawings.

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0030] Embodiment 1

[0031] The present invention provides an expansion joint structure for connecting a cloud rail steel track beam and a concrete track beam. As Figure 1 shown, it includes an anti-overturning angle steel 3, a concrete upper flange joint plate 4, a concrete track beam side joint plate seat 5, a steel track beam side joint plate seat 6, and a web joint plate 7. The anti-overturning angle steel 3 is integrally formed by casting with the side of the concrete track beam 2. The concrete upper flange joint plate 4 is integrally formed by casting with the concrete track beam 2. The steel track beam side joint plate seat 6 is connected to the web of the steel track beam 1. As Figure 2 and 3 shown, the web joint plate 7 is respectively assembled and connected to the concrete track beam side joint plate seat 5 and the steel track beam side joint plate seat 6. As Figure 4 shown, the concrete track beam side joint plate seat 5 is embedded in the concrete track beam 2. As Figure 5 shown, the concrete upper flange joint plate 4 includes a concrete upper flange joint steel plate 4-1 and embedded anchor bars 4-2. The concrete upper flange joint steel plate 4-1 is connected to the upper flange of the steel track beam 1 through an inclined joint. The concrete upper flange joint steel plate 4-1 and the concrete track beam 2 are integrally formed by casting through the embedded anchor bars 4-2. As Figure 6 shown, the concrete track beam side joint plate seat 5 includes a concrete track beam web connecting plate seat steel plate 5-1, stud bolts 5-2, and an outer connecting pipe 5-3. The concrete track beam web connecting plate seat steel plate 5-1 is embedded in the web of the concrete track beam 2 through the stud bolts 5-2 and the outer connecting pipe 5-3. As Figure 7 shown, the web joint plate 7 includes a web connecting plate 7-1 and screw rods 7-2. The web connecting plate 7-1 is assembled and connected to the concrete track beam side joint plate seat 5 through the screw rods 7-2. After the steel track beam side joint plate seat 6 is connected to the web of the steel track beam 1, it is welded into a whole with the steel track beam web edge sealing plate 9. The two web connecting plates 7-1 are connected and transitioned through an inclined joint. The web butt joint plate 8 is welded to the web of the steel track beam 1 through fillet welds.

[0032] Embodiment 2

[0033] The present invention provides a construction method for an expansion joint structure connecting a cloud rail steel track beam and a concrete track beam, comprising the following steps:

[0034] The concrete upper flange joint plate 4 is connected to the steel track beam 1 by an inclined joint.

[0035] The anti-overturning angle steel 3 is cast integrally with the side surface of the concrete track beam 2.

[0036] The concrete upper flange joint steel plate 4-1 is integrally cast with the concrete track beam 2 through embedded anchor bars 4-2. The concrete upper flange joint plate 4 is flush with the top of the concrete track beam 2, and the joint side of the concrete upper flange joint plate 4 and the steel track beam 1 adopts the inclined joint method.

[0037] The web connecting plate seat steel plate 5-1 of the concrete track beam is embedded into the web of the concrete track beam 2 through studs 5-2 and external connecting pipes 5-3.

[0038] The lateral joint plate seat 6 of the steel track beam is connected to the web of the steel track beam 1, and at the same time, the web edge sealing plate 9 of the steel track beam is welded and assembled.

[0039] The web connecting plates 7-1 are respectively assembled to the corresponding lateral joint plate seats 5 of the concrete track beam and the web joint plate seats 6 of the steel track beam through screws 7-2.

[0040] After assembly, the web butt joint plate 8 is butt-welded to the web of the steel track beam 1.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications or equivalent replacements can still be made to the specific embodiments of the present invention, and any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered by the protection scope of the claims of the present invention.

Claims

1. A telescopic joint structure for connecting a cloud rail steel track beam and a concrete track beam, characterized in that It includes an anti-rollover angle steel (3), a concrete upper flange joint plate (4), a concrete track beam lateral joint plate seat (5), a steel track beam lateral joint plate seat (6), and a web joint plate (7). The anti-rollover angle steel (3) is integrally cast with the side of the concrete track beam (2). The concrete upper flange joint plate (4) is integrally cast with the concrete track beam (2). The concrete track beam lateral joint plate seat (5) is embedded in the concrete track beam (2). The steel track beam lateral joint plate seat (6) is connected to the web of the steel track beam (1). The web joint plate (7) is assembled and connected to the concrete track beam lateral joint plate seat (5) and the steel track beam lateral joint plate seat (6) respectively; The concrete upper flange joint plate (4) includes a concrete upper flange joint steel plate (4-1) and embedded anchor bars (4-2). The concrete upper flange joint steel plate (4-1) is connected to the upper flange of the steel track beam (1) through an inclined joint. The concrete upper flange joint steel plate (4-1) and the concrete track beam (2) are integrally cast through the embedded anchor bars (4-2); The concrete track beam lateral joint plate seat (5) includes a concrete track beam web connecting plate seat steel plate (5-1), stud bolts (5-2), and an outer connecting pipe (5-3). The concrete track beam web connecting plate seat steel plate (5-1) is embedded into the web of the concrete track beam (2) through the stud bolts (5-2) and the outer connecting pipe (5-3).

2. The expansion joint structure for connecting the cloud rail steel track beam and the concrete track beam according to claim 1, characterized in that, The web joint plate (7) includes a web connecting plate (7-1) and screw rods (7-2). The web connecting plate (7-1) is assembled and connected to the concrete track beam lateral joint plate seat (5) through the screw rods (7-2).

3. The expansion joint structure for connecting the cloud rail steel track beam and the concrete track beam according to claim 1, characterized in that, After the steel track beam lateral joint plate seat (6) is connected to the web of the steel track beam (1), it is welded into a whole with the steel track beam web edge sealing plate (9).

4. The expansion joint structure for connecting the cloud rail steel track beam and the concrete track beam according to claim 2, characterized in that, The two web connecting plates (7-1) are connected and transitioned through an inclined joint. The web butt joint plate (8) is welded to the web of the steel track beam (1) through fillet welds.

5. Construction method of expansion joint structure for connecting cloud rail steel track beam and concrete track beam, characterized in that It includes the following steps: The concrete upper flange joint plate (4) is connected to the steel track beam (1) by an inclined joint; The anti-rollover angle steel (3) is integrally cast with the side of the concrete track beam (2); The concrete upper flange joint steel plate (4-1) and the concrete track beam (2) are integrally cast through the embedded anchor bars (4-2). The concrete upper flange joint plate (4) is flush with the top of the concrete track beam (2). The joint side of the concrete upper flange joint plate (4) and the steel track beam (1) adopts an inclined joint method; The concrete track beam web connecting plate seat steel plate (5-1) is embedded into the web of the concrete track beam (2) through the stud bolts (5-2) and the outer connecting pipe (5-3); The steel track beam lateral joint plate seat (6) is connected to the web of the steel track beam (1), and at the same time, the steel track beam web edge sealing plate (9) is welded and assembled; The web connecting plate (7-1) is respectively assembled to the corresponding concrete track beam lateral joint plate seat (5) and the steel track beam web joint plate seat (6) through the screw rods (7-2); The web butt joint plate (8) is butt-welded to the web of the steel track beam (1) after the assembly is completed.

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